class HelloWorld {
  public static void main(String[] args) {
    System.out.pringln("hello java!");
  }
  
  public int sub() {
    int a = 0;
    int b = 0;
    
    System.out.pringln(a + b);
    11111
  }
  
  public int add() {
    System.out.pringln();
    asdfasdfasdf
    asdfsd
    f
    // test form sfsdf
  }
  
  public boolean check() {
    int a = 0;
    System.out.println();
  }
}